What am I supposed to do with this plastic cup ?   That cup is for a urine sample .   How , exactly , does this work ?   This particular test calls for you to urinate into the cup after you have urinated a little into the toilet .   When I finish , what should I do then ?   You need to leave the cup in the cubby in the restroom , and the lab tech will get it from the other side .   What is my doctor testing me for ?   If there are bacteria in your urine , it could mean an infection somewhere .   Will I know the results right away ?   Your doctor will be contacting you with the results . 